Bottom line: Critical SharePoint vulnerability actively exploited; immediate patches and network monitoring required.
Attackers are exploiting a critical security vulnerability in Microsoft SharePoint to execute malicious code. The threat is currently active and requires immediate administrative action.
Authorities and security researchers report ongoing attacks on Microsoft SharePoint servers, where attackers are exploiting a critical security vulnerability to inject malicious code. The vulnerability enables unauthorized individuals to perform remote code execution and gain full control over affected systems.
For CISOs, this represents an elevated risk in the enterprise environment, as SharePoint is often used for central data management and collaboration. A compromise can lead to exposure of sensitive company data, access credentials, and internal systems. The active exploitation in the wild underscores the urgency of the threat.
Administrators should immediately verify whether SharePoint instances in their infrastructure are affected, apply available security updates, and search system logs for signs of compromise. Additionally, network monitoring should be intensified to detect suspicious activity on affected servers.
Source: www.golem.de · Published July 3, 2026
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